From c0a55a0c9da2ffd7836530f9b30171eef3da03b7 Mon Sep 17 00:00:00 2001 From: Philippe Mathieu-Daudé Date: Tue, 1 Nov 2022 23:29:33 +0100 Subject: hw/sd/sdhci: Support big endian SD host controller interfaces MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some SDHCI IP can be synthetized in various endianness: https://github.com/u-boot/u-boot/blob/v2021.04/doc/README.fsl-esdhc - CONFIG_SYS_FSL_ESDHC_BE ESDHC IP is in big-endian mode. Accessing ESDHC registers can be determined by ESDHC IP's endian mode or processor's endian mode. Our current implementation is little-endian. In order to support big endianness: - Rename current MemoryRegionOps as sdhci_mmio_le_ops ('le') - Add an 'endianness' property to SDHCIState (default little endian) - Set the 'io_ops' field in realize() after checking the property - Add the sdhci_mmio_be_ops (big-endian) MemoryRegionOps. Signed-off-by: Philippe Mathieu-Daudé Tested-by: Bernhard Beschow Reviewed-by: Bernhard Beschow Message-Id: <20221101222934.52444-3-philmd@linaro.org> Signed-off-by: Daniel Henrique Barboza --- hw/sd/sdhci-internal.h | 1 + 1 file changed, 1 insertion(+) (limited to 'hw/sd/sdhci-internal.h') diff --git a/hw/sd/sdhci-internal.h b/hw/sd/sdhci-internal.h index 964570f8e8..5f3765f12d 100644 --- a/hw/sd/sdhci-internal.h +++ b/hw/sd/sdhci-internal.h @@ -308,6 +308,7 @@ extern const VMStateDescription sdhci_vmstate; #define SDHC_CAPAB_REG_DEFAULT 0x057834b4 #define DEFINE_SDHCI_COMMON_PROPERTIES(_state) \ + DEFINE_PROP_UINT8("endianness", _state, endianness, DEVICE_LITTLE_ENDIAN), \ DEFINE_PROP_UINT8("sd-spec-version", _state, sd_spec_version, 2), \ DEFINE_PROP_UINT8("uhs", _state, uhs_mode, UHS_NOT_SUPPORTED), \ DEFINE_PROP_UINT8("vendor", _state, vendor, SDHCI_VENDOR_NONE), \ -- cgit 1.4.1